[Openstack] [rhos-list] dns problem for instances

JuanFra Rodriguez Cardoso juanfra.rodriguez.cardoso at gmail.com
Fri Nov 15 09:35:45 UTC 2013


You can get a newer dnsmasq version here:
http://pkgs.repoforge.org/dnsmasq/dnsmasq-2.65-1.el6.rfx.x86_64.rpm

Regards,
---
JuanFra


2013/11/14 Xin Zhao <xzhao at bnl.gov>

> Hi Terry,
>
> I upgrade to version 2013.1.4 on all 3 hosts (controller/network/compute).
> Unfortunately that doesn't solve the DNS issue for instances.
>
> In the dhcp-agent.log, there is a message of:
>
> WARNING [quantum.agent.linux.dhcp] FAILED VERSION REQUIREMENT FOR DNSMASQ.
> DHCP AGENT MAY NOT RUN CORRECTLY! Please ensure that its version is 2.59 or
> above!
>
> Not sure if it's critical or not ...
>
> Thanks,
> Xin
>
>
> On 11/14/2013 12:36 PM, Terry Wilson wrote:
>
>> Hello,
>>>
>>> I have a multi-host grizzly RHEL6 install, using OVS. From the instance,
>>> I can ping external ips, but DNS resolv doesn't work, it only works for
>>> other instances on the VM network.
>>> If I do subnet-update to add public DNS server ips to the vm network,
>>> DNS resolv works for external hosts, but stops working for other
>>> instances on the same VM network.
>>> Do I miss some configuration here?
>>>
>>> Thanks,
>>> Xin
>>>
>> Which version of quantum are you using? In version 2013.1.4, a bug was
>> fixed for adding a default route in the namespace in which the dnsmasq
>> agent runs so that external DNS requests could be handled. See:
>> https://bugs.launchpad.net/neutron/+bug/1181378 for more details.
>>
>> Terry
>>
>
>
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